jgg     2015 35 (1):  167-171    ISSN: 0412-1961  CN: 21-1139/TG Experimental Study on Detecting the Subsurface Structure Using  Microtremor Array Survey Method 1 Geophysical Exploration Center, CEA, 75 Wenhua Road, Zhengzhou 450002, China 2 Institute of Seismology, CEA, 40 Hongshance Road, Wuhan 430071, China Received: 2014-01-20  Revised: null  Online: 2015-02-06 Supporting info